package de.hs_mannheim.domain; import java.io.*; import java.net.URI; import java.net.http.HttpClient; import java.net.http.HttpRequest; import java.net.http.HttpResponse; import java.net.http.HttpResponse.BodyHandlers; import java.util.ArrayList; import java.util.Arrays; import java.util.HashSet; import java.util.TreeSet; import org.apache.commons.codec.binary.Base64; import org.apache.poi.xssf.usermodel.XSSFSheet; import org.apache.poi.xssf.usermodel.XSSFWorkbook; import org.json.JSONObject; public class System { private User current_user = new User(); private String api_key; private ArrayList<String> distances = new ArrayList<>(); private XSSFWorkbook workbook = new XSSFWorkbook(); public System(String api_key) { this.api_key = api_key; createSheet(); } public void set_current_user_zip(String zip){ this.current_user.setZip(Integer.parseInt(zip)); } public void set_current_user_car_l_100km(double car_l_100km){ this.current_user.setCar_l_100km(car_l_100km); } public void set_current_user_car_avg_kmh(double car_avg_kmh){ this.current_user.setCar_avg_kmh(car_avg_kmh); } public void set_current_user_bike_avg_kmh(double bike_avg_kmh){ this.current_user.setBike_avg_kmh(bike_avg_kmh); } public void decoding(String string){ byte[] binary_data = Base64.decodeBase64(string); string = new String(binary_data); } public void encoding(String string){ byte[] binary_data = new byte[string.length()]; for(int i = 0; i < string.length(); i++){ binary_data[i] = (byte) string.charAt(i); } string = Base64.encodeBase64String(binary_data); } public void createSheet(){ try { XSSFSheet sheet1 = workbook.createSheet("user_information"); FileOutputStream fileOut = new FileOutputStream("workbook.xlsx"); workbook.write(fileOut); fileOut.close(); } catch(Exception ex) {} } public HashSet<User> get_all_user() throws FileNotFoundException, IOException{ HashSet<User> all_users = new HashSet<>(); File file = new File("workbook.xlsx"); String[] fileString = new String[8]; if(file.exists() && file.isFile()){ FileReader fileReader = new FileReader(file); BufferedReader bufferedReader = new BufferedReader(fileReader); String path; while((path = bufferedReader.readLine()) != null){ fileString = path.split(";"); fileString = (String[]) Arrays.stream(fileString) .map(string -> string.substring(0, string.length()-1)) .toArray(); encoding(fileString[1]); all_users.add(new User(fileString[0], fileString[1], fileString[2], Integer.parseInt(fileString[3]), fileString[4], Double.parseDouble(fileString[5]), Double.parseDouble(fileString[6]), Double.parseDouble(fileString[7]))); } } return all_users; } public boolean sign_in_user(String username, String password){ return true; } public boolean sign_up_user(String username, String password, String hometown, int zip, String car_name, double car_co2_km, double car_avg_kmh, double bike_avg_kmh){ return true; } public void sign_out_user(){ this.distances = new ArrayList<>(); } public boolean change_user_details(String username, String password, String hometown, int zip, String car_name, double car_co2_km, double car_avg_kmh, double bike_avg_kmh){ return true; } public ArrayList<String> search(String hometown_or_zip){ TreeSet<String> zip_set = new TreeSet<>(); InputStream inputStream = System.class.getResourceAsStream("/zip.csv"); try (BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) { String line; while ((line = reader.readLine()) != null && zip_set.size()<200) { if(line.contains(hometown_or_zip)){ line = line.replace("\"", ""); zip_set.add(line); } } } catch (Exception e) {} return new ArrayList<>(zip_set); } public ArrayList<String> random_destinations_car(){ calc_all_distances(); ArrayList<String> mem = new ArrayList<>(); ArrayList<String> result = new ArrayList<>(); for(int i = 0; i<this.distances.size(); i++){ if(Double.parseDouble(this.distances.get(i).split(";")[2])>150) mem.add(this.distances.get(i)); } for(int i = 0; i<3; i++) result.add(mem.get((int) (Math.random()*mem.size()))); return result; } public ArrayList<String> random_destinations_bike(){ calc_all_distances(); ArrayList<String> mem = new ArrayList<>(); ArrayList<String> result = new ArrayList<>(); for(int i = 0; i<this.distances.size(); i++){ if(Double.parseDouble(this.distances.get(i).split(";")[2])<100) mem.add(this.distances.get(i)); } for(int i = 0; i<3; i++) result.add(mem.get((int) (Math.random()*mem.size()))); return result; } public String[] destination_details(String destination_zip){ String[] result = new String[5]; result[0] = distance(destination_zip); // Entfernung result[1] = travel_time(destination_zip)[0]; // Reisedauer Auto result[2] = travel_time(destination_zip)[1]; // Reisedauer Fahrrad result[3] = calc_l_consumption(destination_zip); // Kraftstoffverbrauch Auto result[4] = weather_forecast(destination_zip); // Wettervorhersage für die nächsten 3 Tage return result; } public String current_weather(){ String weather = ""; double temperature = 1; try{ HttpClient http_client = HttpClient.newHttpClient(); HttpRequest get_request = HttpRequest.newBuilder() .uri(new URI("https://api.openweathermap.org/data/2.5/weather?zip="+current_user.getZip()+",de&appid="+api_key+"&units=metric&lang=de")) .GET() .build(); HttpResponse<String> get_response = http_client.send(get_request, BodyHandlers.ofString()); JSONObject json = new JSONObject(((String)get_response.body()).substring(0,((String) get_response.body()).length())); weather = json.getJSONArray("weather").getJSONObject(0).getString("description"); temperature = json.getJSONObject("main").getDouble("temp"); } catch (Exception e){} if(weather.equals("")) return "Es ist ein Fehler aufgetreten!"; else return weather + ": " + temperature + " °C"; } public String weather_forecast(String destination_zip){ String weather_day_1 = ""; String weather_day_2 = ""; String weather_day_3 = ""; double temperature_day_1_1 = 1; double temperature_day_1_2 = 1; double temperature_day_1_3 = 1; double temperature_day_1_4 = 1; TreeSet<Double> temperature_day_1 = new TreeSet<>(); double temperature_day_1_high = 1; double temperature_day_1_low = 1; double temperature_day_2_1 = 1; double temperature_day_2_2 = 1; double temperature_day_2_3 = 1; double temperature_day_2_4 = 1; TreeSet<Double> temperature_day_2 = new TreeSet<>(); double temperature_day_2_high = 1; double temperature_day_2_low = 1; double temperature_day_3_1 = 1; double temperature_day_3_2 = 1; double temperature_day_3_3 = 1; double temperature_day_3_4 = 1; TreeSet<Double> temperature_day_3 = new TreeSet<>(); double temperature_day_3_high = 1; double temperature_day_3_low = 1; try{ HttpClient http_client = HttpClient.newHttpClient(); HttpRequest get_request = HttpRequest.newBuilder() .uri(new URI("https://api.openweathermap.org/data/2.5/forecast?zip="+destination_zip+",de&appid="+api_key+"&units=metric&lang=de")) .GET() .build(); HttpResponse<String> get_response = http_client.send(get_request, BodyHandlers.ofString()); JSONObject json = new JSONObject(((String)get_response.body()).substring(0,((String) get_response.body()).length())); weather_day_1 = json.getJSONArray("list").getJSONObject(11).getJSONArray("weather").getJSONObject(0).getString("description"); weather_day_2 = json.getJSONArray("list").getJSONObject(19).getJSONArray("weather").getJSONObject(0).getString("description"); weather_day_3 = json.getJSONArray("list").getJSONObject(27).getJSONArray("weather").getJSONObject(0).getString("description"); temperature_day_1_1 = json.getJSONArray("list").getJSONObject(8).getJSONObject("main").getDouble("temp"); temperature_day_1_2 = json.getJSONArray("list").getJSONObject(10).getJSONObject("main").getDouble("temp"); temperature_day_1_3 = json.getJSONArray("list").getJSONObject(12).getJSONObject("main").getDouble("temp"); temperature_day_1_4 = json.getJSONArray("list").getJSONObject(14).getJSONObject("main").getDouble("temp"); temperature_day_2_1 = json.getJSONArray("list").getJSONObject(16).getJSONObject("main").getDouble("temp"); temperature_day_2_2 = json.getJSONArray("list").getJSONObject(18).getJSONObject("main").getDouble("temp"); temperature_day_2_3 = json.getJSONArray("list").getJSONObject(20).getJSONObject("main").getDouble("temp"); temperature_day_2_4 = json.getJSONArray("list").getJSONObject(22).getJSONObject("main").getDouble("temp"); temperature_day_3_1 = json.getJSONArray("list").getJSONObject(24).getJSONObject("main").getDouble("temp"); temperature_day_3_2 = json.getJSONArray("list").getJSONObject(26).getJSONObject("main").getDouble("temp"); temperature_day_3_3 = json.getJSONArray("list").getJSONObject(28).getJSONObject("main").getDouble("temp"); temperature_day_3_4 = json.getJSONArray("list").getJSONObject(30).getJSONObject("main").getDouble("temp"); } catch (Exception e){} temperature_day_1.add(temperature_day_1_1); temperature_day_1.add(temperature_day_1_2); temperature_day_1.add(temperature_day_1_3); temperature_day_1.add(temperature_day_1_4); temperature_day_1_high = (double) temperature_day_1.toArray()[temperature_day_1.size()-1]; temperature_day_1_low = (double) temperature_day_1.toArray()[0]; temperature_day_2.add(temperature_day_2_1); temperature_day_2.add(temperature_day_2_2); temperature_day_2.add(temperature_day_2_3); temperature_day_2.add(temperature_day_2_4); temperature_day_2_high = (double) temperature_day_2.toArray()[temperature_day_1.size()-1]; temperature_day_2_low = (double) temperature_day_2.toArray()[0]; temperature_day_3.add(temperature_day_3_1); temperature_day_3.add(temperature_day_3_2); temperature_day_3.add(temperature_day_3_3); temperature_day_3.add(temperature_day_3_4); temperature_day_3_high = (double) temperature_day_3.toArray()[temperature_day_1.size()-1]; temperature_day_3_low = (double) temperature_day_3.toArray()[0]; if(weather_day_1.equals("")||weather_day_2.equals("")||weather_day_3.equals("")) return "Es ist ein Fehler aufgetreten!"; else return "Morgen: " + weather_day_1 + ": Minimum: " + temperature_day_1_low + " °C" + "; Maximum: " + temperature_day_1_high + " °C\n" + "Übermorgen: " + weather_day_2 + ": Minimum: " + temperature_day_2_low + " °C" + "; Maximum: " + temperature_day_2_high + " °C\n" + "Überübermorgen: " + weather_day_3 + ": Minimum: " + temperature_day_3_low + " °C" + "; Maximum: " + temperature_day_3_high + " °C"; } public String distance(String destination_zip){ double lon1 = -1; double lon2 = -1; double lat1 = -1; double lat2 = -1; InputStream inputStream = System.class.getResourceAsStream("/zip.csv"); try (BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) { String line; while ((line = reader.readLine()) != null) { line = line.replace("\"", ""); if(line.split(";")[0].equals(destination_zip)){ lon2 = Double.parseDouble(line.split(";")[2]); lat2 = Double.parseDouble(line.split(";")[3]); } if(line.split(";")[0].equals(""+current_user.getZip())){ lon1 = Double.parseDouble(line.split(";")[2]); lat1 = Double.parseDouble(line.split(";")[3]); } } } catch (Exception e) {} if(lon1==-1||lon2==-1||lat1==-1||lat2==-1) return "Es ist ein Fehler aufgetreten!"; double dLat = lat2-lat1; double dLon = lon2-lon1; double a = Math.pow(Math.sin(Math.toRadians(dLat/2.0)), 2) + Math.pow(Math.sin(Math.toRadians(dLon/2.0)), 2) * Math.cos(Math.toRadians(lat1)) * Math.cos(Math.toRadians(lat2)); double distance = 6378.388 * 2.0 * Math.atan2(Math.sqrt(a), Math.sqrt(1.0-a)); return "" + (Math.round((distance * 1.25)*1000)/1000.0) + " km"; } public void calc_all_distances(){ if(!this.distances.isEmpty()) return; InputStream inputStream = System.class.getResourceAsStream("/zip.csv"); try (BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) { String line; while ((line = reader.readLine()) != null) { line = line.replace("\"", ""); this.distances.add(line.split(";")[0] + ";" + line.split(";")[1] + ";" + Double.parseDouble(distance(line.split(";")[0]).replace(" km", ""))); } } catch (Exception e) {} } public String[] travel_time(String destination_zip){ String[] result = new String[2]; if(distance(destination_zip).equals("Es ist ein Fehler aufgetreten!")){ result[0] = "Es ist ein Fehler aufgetreten!"; result[1] = "Es ist ein Fehler aufgetreten!"; return result; } result[0] = "" + (Math.round(((Double.parseDouble(distance(destination_zip).replace(" km", "")) / current_user.getCar_avg_kmh()))*1000) / 1000.0) + " h"; result[1] = "" + (Math.round(((Double.parseDouble(distance(destination_zip).replace(" km", "")) / current_user.getBike_avg_kmh()))*1000) / 1000.0) + " h"; return result; } public String calc_l_consumption(String destination_zip){ if(distance(destination_zip).equals("Es ist ein Fehler aufgetreten!")) return "Es ist ein Fehler aufgetreten!"; return "" + (Math.round((Double.parseDouble(distance(destination_zip).replace(" km", "")) * (current_user.getCar_l_100km() / 100.0))*1000)/1000.0) + " l"; } }